BIKERELIABILITY Reg check
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Piaggio Vespa GTS 125 Super Sport vs Honda PCX 125

The Piaggio Vespa GTS 125 Super Sport passes its MOT first time more often than the Honda PCX 125: 87.3% vs 81.1%, a 6.2-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Piaggio Vespa GTS 125 Super Sport Honda PCX 125
First-time pass rate 87.3% 81.1%
Outright fail rate 9.6% 12.9%
Vs comparable bikes (age & mileage adjusted) +14.9 pts +8.2 pts
Engine size 124cc 125cc
Rank among all models #1818 of 5428 #3358 of 5428
Median miles at test 10,547 16,405
MOT tests analysed 387 88,608
Most common failure lamps and reflectors brakes

First-time outcomes on normal tests, 2005–2025. "Most common failure" is the component group with the most recorded defects on failed tests. Read pass rates against test counts: a smaller sample is noisier. Source: DVSA anonymised MOT results.

"Vs comparable bikes" is the first-time pass rate minus the rate expected for each bike's own mix of age, mileage and test class, in percentage points: positive means better than comparable bikes. How this works.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested
Test year Piaggio Vespa GTS 125 Super Sport Honda PCX 125
2015 82.9% 83.5%
2016 87.2% 82.5%
2017 91.7% 80.5%
2024 85.0% 80.9%
2025 90.0% 81.6%

Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.

Pass rate by mileage

first-time MOT pass rate by miles on the clock at test
Mileage Piaggio Vespa GTS 125 Super Sport Honda PCX 125
0k-10k miles 94.7% 88.4%
10k-20k miles 83.9% 79.3%
20k-30k miles 74.5% 78.0%

Bands with fewer than 30 tests for either bike are left out.

See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.